Lin Zhixia gives three colleagues rides along the way, charging only eighty yuan per month to share gas money. New colleague Su Man questions her fee, lets her ride-hailing boyfriend provide free rides, and the colleagues turn against her. Lin Zhixia refunds the money and stops driving them. Su Man trades the free rides for colleagues doing her chores, while Chen Hao repeatedly breaks his promises. On the day of the hospital inspection, Chen Hao abandons the drop-off for a high-paying order, causing everyone to be late. Lin Zhixia holds down the site, and at the review meeting uses records to expose the truth. Su Man fails her probationary period, and Lin Zhixia is transferred to a new project team, refusing to carpool again: "Giving a ride along the way is goodwill, not an obligation."